dude
i made a working backup of medal of honour allied assault using nero 5.5.9.9 it took 2 houres to read the disc using a hp100j dvd+rw/cd-r/rw drive i put this down to the copy protection as i had several dozen read errors.
but once burned the game installed ok i have no problems and as the backup was from a legal original i own i have no problems going online to multi player games.
this is also the case for return to castle wolfenstein
soldier of fortune 2
battlefield 1942
and unreal tournament 2003
all took approx 2 houres to read but burned ok since upgrading to nero 5.5.9.17 it now takes aprox 20 miniutes to read these games.